CHISQ.INV

CHISQ.INV(probability, degrees_freedom)

Returns the inverse of the probability distribution function for a chi-squared distribution (left tailed).

probability	The probability associated with the distribution.
degrees_freedom	The number of degrees of freedom.

REMARKS

* For an illustrated example refer to the page under Distributions
* The chi-squared distribution is a continuous distribution
* If "probability" < 0, then #VALUE! is returned.
* If "probability" > 1, then #VALUE! is returned.
* If "probability" is not numeric, then #VALUE! is returned.
* If "degrees_freedom" is not an integer, it is truncated.
* If "degrees_freedom" < 1, then #NUM! is returned.
* If "degrees_freedom" > 10^10, then #NUM! is returned.
* If "degress_freedom" is not numeric, then #VALUE! is returned.
* You can use the CHISQ.DIST function to return the probability distribution function OR the cumulative probability function for a chi-squared distribution (left tailed).
* You can use the CHISQ.DIST.RT function to return the probability distribution function for a chi-squared distribution (right tailed) (no cumulative).
* You can use the CHISQ.INV.RT function to return the inverse of the probability distribution function for a chi-squared distribution (right tailed) (no cumulative).
* You can use the CHISQ.TEST function to return the probability value from a chi-squared distribution.
* This function was added in Excel 2010 but it does not replace the CHINV function because this was right tailed.
* For the Microsoft documentation refer to support.microsoft.com

	A
1	=CHISQ.INV(0.93, 1) = 3.28
2	=CHISQ.INV(0.6, 2) = 1.83